This article records tradition as it has been passed down and reported. Its sources are not yet part of the atlas's verified catalogue.
On 4 August 1986, delegates from the Moravian Church's four Tanzanian provinces met at Sikonge and resolved to unite as a single national church for the first time. The formal inauguration of the Moravian Church in Tanzania followed on 23 November 1986, bringing four previously separate provinces under one national body.
The Tanzanian work behind that union stretched back nearly a century. It traced to the church's first East African mission station, opened at Rungwe in 1891, decades of growth that had by the 1980s produced four distinct provinces operating with no single national structure tying them together.
Sikonge's resolution and the November inauguration changed that in a matter of months. Four provinces that had grown up separately, each with its own local leadership and its own century of development, took on a shared national identity for the first time since the Rungwe mission had planted the Moravian Church in East Africa.
What the 1986 unification changed for the Moravian Church's spread in Tanzania was converting nearly a hundred years of separately grown provincial work into a single national church, giving a mission that began with one station at Rungwe in 1891 one national voice across the country it had spread through.